Service of Nissan Almera from 1995 to 2000 in N15 body
1. General information
2. General requirements to car repairs
3. Operation and maintenance of the car
4. Petrol engines
5. Diesel engines
6. Transmission
7. Running gear
8. Steering
9. Brake system
9.1. General information
9.2. Brake mechanisms of forward wheels
9.3. Brake mechanisms of back wheels of drum type
9.4. Brake mechanisms of back wheels of disk type
9.5. Drive of brakes
9.6. Anti-blocking system of brakes
10. Electric equipment
11. Body
12. Appendices
13. Schemes of electric equipment
 





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9.1. General information

The working brake system with the hydraulic drive consists of two independent contours divided on diagonal (the left forward — right back, right forward — left back wheels). Forward brake mechanisms with the ventilated disks, back — drum.
Are the main brake cylinder with regulators of pressure of back brakes a part of the hydraulic drive of the working brake system, the vacuum amplifier and, depending on modification, anti-blocking system (ABS).
In the presence of ABS disk back brake mechanisms are used. Pressure regulators on cars with ABS are installed on a beam of a back suspension bracket.
On cars with the diesel engine the vacuum pump also is a part of the brake system.

Fig. 7.1. Brake mechanism of forward wheels of the CL22VD and CL22VE types:
1 — the directing fingers; 5 — a protective cover; 3 — a guide of brake shoes; 4 — a brake disk; 5 — clamping an insert of blocks; 6 — a brake shoe; 7 — clamping springs; 8 — shumogasyashchy laying;
9 — a bolt of fastening of a finger; 10 — the union for pumping; 11 — a support; 12 — a sealing ring; 13 — the piston; 14 — an antisplash cuff.


Brake mechanisms of forward wheels — with a floating bracket, one-piston, with the pig-iron ventilated disks (fig. 7.1).
Characteristics of the forward brake mechanism are specified in tab. 7.1.

Table 7.1   of the Characteristic of brake mechanisms of forward wheels
Characteristic
GA14DE engine
GA16DE, CD20 engines
Type
CL22VD
CL22VE
Diameter of the piston of the wheel cylinder, mm
54
Outer diameter of a brake disk, mm
232
247
Thickness of a disk, mm:
 
nominal
18
minimum admissible
16
Axial beating of a working surface of a disk, no more, than a mm
0,07
Unevenness of thickness of a disk, no more, than a mm
0,02
Length/width of brake shoes, mm
106/39,5
Thickness of frictional slips, mm: